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When was it known that only U235 fissions with thermal neutrons? I believe it was a significant time after fission was known, but am not sure for now.Gah4 (talk)16:12, 30 June 2020 (UTC)Reply
- I am certainly not qualified to answer this, but the final paragraph in the left-hand column of page 891here might be useful.Wtmitchell(talk)(earlierBoracay Bill)15:12, 24 July 2020 (UTC)Reply
- OK, January 1939 for the discovery, and December 1942 for the first reactor. The reactor was designed with a moderator, because they knew by then it would allow neutrons to find U235 before (too many) were absorbed by U238. That is about four years.Gah4 (talk)17:50, 24 July 2020 (UTC)Reply
A comparison with coal might be nice, and there should be plenty ofWP:RS for it. Comparing atom for atom, C12 vs. U235, though, isn't very useful. Usually the comparison is by weight, I am not sure now if it is for 3.5% enriched, or how it is done. Without looking, though, I believe that there should be such a source. I do agree with removing the one just removed.Gah4 (talk)22:30, 23 July 2020 (UTC)Reply
Intro says sometimes neutron capture forms U-236 but this seems dubious and has no reference and is not mentioned in the rest of the article. (Ground state U-236 has a long half life.) -Rod57 (talk)09:46, 21 April 2021 (UTC)Reply
- It sounds familiar, but I don't know where I might have seen it. That would be more likely at lower neutron energy.Gah4 (talk)19:30, 21 April 2021 (UTC)Reply
- OK,Uranium-236 says 18% for thermal neutrons.Gah4 (talk)19:40, 21 April 2021 (UTC)Reply